Nt32Pkg/WinNtThunkPPIToProtocolPei/WinNtThunkPPIToProtocol.c

   1 /**@file
   2
   3 Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
   4 SPDX-License-Identifier: BSD-2-Clause-Patent
   5
   6 Module Name:
   7
   8     WinNtStuff.c
   9
  10 Abstract:
  11
  12     Tiano PEIM to abstract construction of firmware volume in a Windows NT environment.
  13
  14 Revision History
  15
  16 **/
  17
  18 //
  19 // The package level header files this module uses
  20 //
  21 #include <PiPei.h>
  22 #include <WinNtPeim.h>
  23 //
  24 // The protocols, PPI and GUID defintions for this module
  25 //
  26 #include <Protocol/WinNtThunk.h>
  27 #include <Ppi/NtThunk.h>
  28 //
  29 // The Library classes this module consumes
  30 //
  31 #include <Library/DebugLib.h>
  32 #include <Library/PeimEntryPoint.h>
  33 #include <Library/HobLib.h>
  34
  35 EFI_STATUS
  36 EFIAPI
  37 PeimInitializeWinNtThunkPPIToProtocolPeim (
  38   IN EFI_FFS_FILE_HEADER       *FfsHeader,
  39   IN EFI_PEI_SERVICES          **PeiServices
  40   )
  41 /*++
  42
  43 Routine Description:
  44
  45   Perform a call-back into the SEC simulator to get NT Stuff
  46
  47 Arguments:
  48
  49   PeiServices - General purpose services available to every PEIM.
  50
  51 Returns:
  52
  53   None
  54
  55 --*/
  56 // TODO:    FfsHeader - add argument and description to function comment
  57 {
  58   EFI_STATUS              Status;
  59   EFI_PEI_PPI_DESCRIPTOR  *PpiDescriptor;
  60   PEI_NT_THUNK_PPI        *PeiNtService;
  61   VOID                    *Ptr;
  62
  63   DEBUG ((EFI_D_ERROR, "NT 32 WinNT Stuff PEIM Loaded\n"));
  64
  65   Status = (**PeiServices).LocatePpi (
  66                             (const EFI_PEI_SERVICES **)PeiServices,
  67                             &gPeiNtThunkPpiGuid,  // GUID
  68                             0,                    // INSTANCE
  69                             &PpiDescriptor,       // EFI_PEI_PPI_DESCRIPTOR
  70                             (VOID**)&PeiNtService         // PPI
  71                             );
  72   ASSERT_EFI_ERROR (Status);
  73
  74   Ptr = PeiNtService->NtThunk ();
  75
  76   BuildGuidDataHob (
  77     &gEfiWinNtThunkProtocolGuid,         // Guid
  78     &Ptr,                                // Buffer
  79     sizeof (VOID *)                      // Sizeof Buffer
  80     );
  81   return Status;
  82 }